What is the difference between silanes, siloxanes and silicone?
All three are silicon based molecules that have masonry waterproofing applications. Silanes are monomers, the smallest and most simple of the three molecules. Silanes are best suited for dense surfaces like concrete and cultured stone. High concentrations of about 40% are necessary because of silane’s volatility. Siloxanes oligomers are larger and more complex molecules than silanes. At lower concentrations they provide excellent moisture protection to more porous surfaces like split face concrete block. Siloxanes can be blended with silanes to produce a treatment with the advantages of both materials. Silicone polymers are large functional molecules that are used in caulks and sealants. Silicones can be useful for protecting porous natural stone that has a neutral ph. For concrete and masonry applications, silanes and siloxanes penetrate farther and preserve the surface’s original appearance. Q: What type of insulation is suitable for below grade foundation walls. A: Extruded polystyr
